柯林斯詞典blood transfusion (blood transfusions) 1. N-VAR A blood transfusion is a process in which blood is injected into the body of a person who is badly injured or ill. 輸血 返回 blood transfusion劍橋詞典a process in which blood that has been taken from one person is put into another person's body , especially after an accident or during an operation 輸血 返回 blood transfusion